Effects of Ultrasonic Frequencies on Grinding Force of Nano-Composite Ceramics Based on Nonlocal Theory

Article Preview

Abstract:

Based on nonlocal theory, The effects of ultrasonic frequencies on the grinding force and nonlocal decay rate are obtained through the experimental study of material properties under ultrasonic vibration grinding test. The results of experiments showed that grinding force is attenuated in the ultrasonic vibration frequency ranges and this attenuation phenomenon becomes more and more evident by the increase of the ultrasonic frequencies. Through analysis of the grinding surface morphology and phase structure, it showed that ultrasonic vibration greatly reduces the average grinding force, and the surface quality are improved, and that it is much easier to achieve ductile-mode machining under ultrasonic vibration. The results of experiments are in accordance with the analysis of nonlocal theory.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

148-153

Citation:

Online since:

September 2012

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

Ā© 2012 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Yanyan Yan, Chengjie Li, Bo Zhao et al. Research on grinding force of two dimensional ultrasonic grinding for nano-Zr02 Ceramics. Chinese Mechanical Engineering, 2008, 19(11): 1270-1274.

Google Scholar

[2] Shuyou Zheng, Pingfa Feng, Xipeng Xu. Research and development of rotary ultrasonic machining technology. Journal of Tsing Hua University, 2009, 49(11): 1799-1804.

Google Scholar

[3] Eringen A C. Nonlocal polar elastic continua.International Journal of Engineering Science, 1972, 10(1): 1-16.

Google Scholar

[4] Eringen A C, Edelen D G. B. On Nonlocal Elasticity. International Journal of Engineering Science, 1972, 10(3): P233-248.

Google Scholar

[5] Hi Ma, Bo Zhao, Ping Xie. Study on Ceramic Grinding Crack Propagation Mechanism under Ultrasonic Action by Using Nonlocal Theory. Chinese Mechanical Engineering. 2009, 20(12): 1498-1502.

DOI: 10.4028/www.scientific.net/amr.69-70.64

Google Scholar

[6] S. Narendar, S. Gopalakrishnan. Nonlocal scale effects on ultrasonic wave characterstics of nanorods. Physica E. 2010, 42: 1601-1604.

DOI: 10.1016/j.physe.2010.01.002

Google Scholar

[7] PinsanCheng. Nonlocal mechanics theory of brittle fracture. Journal of Mechanics, 1992, 24(3): 329-338.

Google Scholar